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发明名称
MAGNERTICALLY OPERABLE VALVES
摘要
申请公布号
GB1574616(A)
申请公布日期
1980.09.10
申请号
GB19760022620
申请日期
1977.05.30
申请人
POST OFFICE
发明人
分类号
F16K31/08;(IPC1-7):F16K31/06
主分类号
F16K31/08
代理机构
代理人
主权项
地址
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